Machine for uniting knit fabrics.



W. G. WRIGHT. MACHINE FOR UNITING KNIT FABRICS. APPLIOATION FILED SEPT. 4, 1912.

1 @2,@5 Patented Apr. 14, 1914.

3 SHEETSSHEET 1.

W. O. WRIGHT.

MAGHINE FOR UNITING KNIT FABRICS.

APPLICATION FILED SEPT. 4, 1912.

4 1 9 1 A 1 W. A d e M W a P 3 SHEETS-SHEET 2 gimme/whoa:

' WW/1,200. ZZ r.

W. C. WEIGHT.

MAGHINE FOR UNITING KNIT FABRICS. I

APPLIUATION FILED SEPT. 4, 1912.

Patented Apr. 145; 1914.

3 SHEETS-SHEET 3.

u q o w m w m c WW; I. a MW 3 low v a L 1 w l t ll mea aivnumchnrnmnn wnren'r, onranuca'mxnnrncm', 'AssmNon or one-HALF 'ro rmIsnwmeaon; OF- rannonn, KENTUCKY.

-' iihonmn ron'n nr rine KNIT time; j

Shecification jof Lette a 'oitiz enoft-heUnited States,v residing at tnam-inwe come Stateofi Kentucky; hate invented certain new and useful 'linproy'ements in Machines, for Uniting Knit Fabrics, :of which; the i011 of- MoCracken and '--;10wing; is a specification.

j v v is particularly-designed forfclosin opening' in the toe '2 'stocking,"and is designed toftorxn jen elasticj a My 'nvention relates -to improverhents in machines. for unitingkaritfabrkath ma .chine bfeing adapted tojiinite 'on'connect the mee'ting edgesfof-"twoIpieces *or portions of seamgin-chain of stitches in the produc the ipops of the -ad-; meansof an elastic underwear, and the like.

. Thepresent embodiment of the. invention the usual portion of" t e; knitted chain-of stitches V for-. oining' the adjacent si ed; and "adapted for use in connection ciosed in {Hy-application for, Letters Patent I =for'improvements in machines for uniting t looper' hqOkandth i' f operating. B'SflIlg'erm. v. v

- fabrics -5. 717 present improvements relating 'particularly 't 1 n improv d f of filed APri1 l6th, 1912, Serial quired elastlcityin the-uniting seam or. chain of s'titches, a stitehfinger is' mou'nted above and extends in the directionof the'travel' t the ring of impaling pins in cooperativeres 1a-tion-- with. the thread needle and thread carrying looper in' -the* stitch forming operastitch finger being adapted to be tion, said in a chain of uniformlyformed included stitches; the latter being withdrawn or shed i -oit-trom the outer or fr'eeen'd of the stitch f oyement of the finger-by the progressive tnnpaiing pin-s,

p '11- the sl ie' e,

, 'thll fplbvidin'g a unifo mly, e e'lastic hain-breaches. .7 a

. The improvedfforni e 'ioop'er hookto which this application particularly relates Iooper hOOk being fabric tr be'- proyide the necessary or. re-

- r 've to the plane-ofthe ringbf impaling'pins being preferably port opposite t mechanism, thus -aii' ordingfree' or 'unob st ructed access t'o'the latter, as in threading the thread z'carrying parts, -the improved be steppe d' on opposite sides "of the same in the sewln'g or, looping operation, said looper r's Pag Patent-ea Apr. 14, 1914.. Application filed S'epteniber 4-, 1912. ethane-718,472.;

- is rotatably'inounted above. and at an angle n ountedon the dial .sup- 7 e feedsideof the sewing I adaptedito'describe a substantially semi circul-ar: path over and about i saidstitchffin'ger' .andthreadtneedle and to the thread I loop. iron the thread needle and ,after passing'oyer the stitch finger and after thethreaclneedle is in its] rearward or res as advancedi'vill enter-and'take up the loop will. he returned .tion.

" -W ith to its-initiator tormer positheabove -mentio-Iied ends Lin-view,

. the invention consists in the novel construc- 131011, arrangement, and combination of parts, 5

hereinafter described, illustrated in :one of. its embodiments-in the 1 accompanying dra'wingsg-jand'lparticularly pointed out in 'the 'appended claims, r

Referring to the drawingsyforming a part of this specification, Figure 1, 1s a top plan View of a; machine constructed in accordance :Wlth my invent on. F g. 2,a side'elevation" of'the same. Fig, 3 a perspective-View of the sewing mechanism taken from the'front or feed side thereof, the improved; thread carrying looper hook-being in its forward or advanced positiomandthe thr ea'd needle bein about to advance and enter and take up the loop from the iooper hook. Fig. 4,

a similar View showing the'thread-needIe advancing and the iooper hook retreating to its initialtposition or the positionopposite that shown in Fig. 3. Fig- 5, anenlarged View of the rotary looper hook actuating or operating mechanism, the cap or cover for the supporting block; or. bracket being removed for' the purpose-of clearer illustration of theparts. "Fig. 6,9, cross sectional view of the supporting'bl ock or bracket carrying the Similar numerals of referencedesignate adapted to advance and enter and take up fceded position being stopped. or held in ro-penposition whereby thethreadlneedle V from the looper hOQkfLftl' which the latter rotary looper hook, the latterparts or members 60m rised in the stitch impaling pins 6. The loops of fabric to be united are placed over the impaling pins 6, h

in a well-known and understood manner, and the ring of impaling pins, in the present 'mstanc'e, is given a continuous and uniformly' revolving movement by means of suitable driving mechanism comprising a driving shaft h carrying arm B, said shaft A, receivingits motion by means of a bevel gear Q, mesh ng with abevel gear D, on the main dr ving shaft 7, the outer or free end of the driving shaft A, being provided with a worm gear E, normally meshing witha gear wheel F, carried upon a shaft G, mounted beneath the dial plate 4, said shaft G, bemg provided at one end with a pinion'H, meshing with a rack on the under side of the ring 5, carrying the impaling pins 6. The driving shaft 7, is adapted to receive its motion by means of a suitable pulley 8, adapted to carry a suitable beltin communicating with a suitable source 0 power, and pulley clutch mechanism 9.

As a means for actuating the various forming mechanisni, "the driving shaft 7, may be provided with a crank disk or head 10, and the" curved thread needle 11, is carried by and reciprodated over and above each of the impaling-pins by means of an oscillating needle arm 12, carried upon a bearing shaft or stem 13, extending from the side of the supporting arm 2, of the machine. The oscillating needle arm 12, is adapted to be reciprocated by means of a pitman or connectin arm 14, connected at one endbymeans of a suitable coupling or connection 15, and at the other by means of a suitable universal coupling or connection 16;, the'l'atter preferably comprising a suit able bearing screw 16, mounted in the crank disk or head 10, of the driving shaft 7, said cation, Serial the bearing v bearing screw passing through a pair of sem -spherical shaped members 17 (more fully shown and described in my said appli- No. 691,179) loosely fitted on member 16, and having their convex sides extending toward each other and set in the bearing opening 18, of the pitman arm 14.

The needle arm 12, is provided at its upper portion with two bearing heads 12 on the bearing shaft or stem 18, and said terposed.- between the- A, mounted in a movable shaft paling-pins,

' to ride upon bearing heads 12, are adapted to be moved longitudinally on said shaft or stem 13 whereby said needle arm 12, and threa needle '11, are moved laterally during both their to and fro reciprocation, by means of a wiper arm19, pivotally connected at one end to the pitman or link member 14, and provided with a slotted bearing head 19, mounted on the shaft or stem 13, and instationary standard 20, and the adjacent bearing head 12, the

side of said bearing head 19, adjacent to the bearing head 12, having an inclined bearing portion or cam face 19*, said inclined hearing portion 19", beingadapted to move the needle arm 12, laterally against the resistance .of a spring 21, (see Fig. 1) as the curved thread needle 11, is reciprocatedfon -ward1y and through the loops of fabric to be'united in the stitch forming operation, and it will be observed that as said needle arm 12, and curved thread needle 11, are

-moved rearwardly, the bearing heads 12*,

of the needle arm will be returned to their former position as the'bearing head 19*, is returned to its'initial position, as particularly illustrated in Figs. 2 and 3, of the drawings. By reason of this movement, it is obvious that as the needle arm 12, is reciprocated it will-be moved laterally in its to and fro movements and thus carry the thread needle laterally while in the loops of fabric to correspond with the movement of theimpaling-pins carried by the conrotating ring.

tmuously A stitch carrying guide memberor stitch finger 22, is pivotally mounted in a supporting bracket 23, at

the free'end of said stitch 'finger being provided with a slightly depressed pointed or tapered tongue portion 22 said tapered tongue portion'22 being adapted a plurality of the subjacent pins when the latter are empty and to ride or travel upon a plurality of the adjacent loops of the fabric to be united as the latter are carried under the tongue portion of the stitch finger by the impaling-pins. The depressed tongue portion 22*, of the stitch finger is held down by the action of a spring 24:, extending from the supporting bracket 22 the depressed tongue portion 22. of the stitch finger terminating in an oifset portion 22', the curved thread needle 11, being adapted to pass at the rear of and in close proxim ty to the offset portion 22*, during its rec procatory movements through the loops of fabric to be united and over and above the subjacent impaling-pins carrying the loops to be united by the stitch forming operation.

The improved thread carrying looper 25,. is provided with a looper hook'or' head member 25, extending at an angle to the shank portion, and hook or head member 25, being one side of the ring of imnoeaase slightly curved on its inner side as at 25, to

receive the thread needle'and to form the loop 26, of the looperthre adkvhen theloop er is in its forward positron-and the thread needle isadvancing to take up the loop 26, of the looper, as showmin Fig. 3 of the drawings.

7 As a means for rotatably mounting the improved looper 25, and giving the improved looper hook-a substantially semicircular to and fro movement or path and over and above the offset portion 22 of i I has thestitch finger 22, as.well as causing the looper hook'to be momentarily stopped on opposite sides ofthe stitch finger 22, as well as on opposite sides of the path of the curved thread needle 11, whereby the improved looper hook 25, is adapted to-take up the thread from the thread needle when the latter is in its forward position under the offabout to retreat and whereby when the looper hook is in its forward position and assed over the offset portion 22 and the t read needle is in its rearward position and is about to pass forward to take up the loop 26, from' the looper hook 25*, as shown in Fig. 3 of the drawings, the im- -proved looper is rotatably mounted with its axis extending at an angle to the plane of the ring of impaling pins, in the present instance, by means of an axle shaft or stem 25, removably and adjustably mounted in a stub shaft 27 carried in a hearing or supporting block or member 28, the latter, in the present instance, being mounted on a bracket arm 29, mounted on the dial plate 4, and extending over and above the ring of impaling pins 6.

Asv ameanmfor rotating or oscillating the thread carrying looper 25, in proper cooperative relation to the Stitch finger and thread needle as above described, the stub shaft 27, in the present instance, is provided with a head or disk member 27*, carrying an anti-friction roller or disk member 30, adapted to extend into and receive its m0- tion from a curved guide-way or slot 31, of

a reciprocatory plate or slide member 31, slidably mounted in a guideway 28, formed on one side of the supporting block or bearing member ,28, said plate or slide member 31, being adapted to receive the requisite reciprocatory movement through the me dlum of a connecting link 32, the latter being detacha'bly secured at one end to the end "of-theplate or member 31, by means of a bearing pin or lug'33, and at the other being adjustably and movably connected to a yoke member 34, by means of an adjustably connecting bolt 35, said yoke member 34:, being mounted upon an eccentric head or disk member 36, carried upon the main driving shaft 7. The stu'b shaft 27, carrying the b5 looper 25, and the reciprocatory member 31,

set screw 38, as shown most clearly in Fig.

6, of the drawings.

By reason of the above construction it will. be seen that the improved form of rotatably mounted thread carrying looper 1s given the requisite movements in the stitch or looper forming operation by exceedingly simple and efficient actuating mechanism, and that the parts may be readily adjusted to meet the varying demands of actual service, the needle and looper moving in paths on opposite sides respectively of the ofiset or shoulder portion 22", of the stitch finger, the initial or first stitch being formed over and about said shoulder whereby said shoulder forms the zone of formation and the said tapered tongue portion 22, provides the zone of retreat for the stitches. From the foregoing description, taken in connection with the accompanying drawings, the operation and advantages of my invention will be readily understood.

Having thus described one of the embodiments of my invention, what I claim and desire to secure by Letters Patent is,

, 1. In a looping machine, a rotatably mounted looper hook, a thread needle, and means for reciprocating said looper hook and thread needle whereby said looper hook will be moved in a semi-circular path above the path of travel of said thread needle and will be stopped and caused todwell in reversed substantially vertical positions on 0pposite sides of said thread needle, said looper hook in one-position being adapted to take up the thread from the thread needle and in the other being adapted to have the thread needle take up the thread from the looper rocatory member having a curved guide-slot taking over said eccentric member whereby to oscillate said looper carrying shaft and cause the latter to dwell at the ends of the throw of said eccentric member, and means for actuating said reciprocatory member.

8. In a machine for uniting knit fabrics, a rota-tably'mounted looper hook, a reciprocatory thread needle, a stitch finger, and means for reciprocating said looper hook and thread needle in cooperative relation to said stitch finger, said looper hook being mounted to have a half somersault motion over said stitch finger andthe path of travel of said thread needle and to be stopped in reversed substantially vertical positions on opposite sides of the latter.

4. In amachine for uniting knit fabrics, a rotatably mounted looper hook, a reciprocatory needle arm carrying a curved thread needle, a stitch finger mounted above and below the paths of travel of said looper hook and thread needle, respectively, and means for actuating said parts in cooperative relation to each other and causing said looper hook to be moved to and fro above said stitch finger and to dwell in reversed vertical positions on opposite sides of the path of travel of said curved thread needle.

5. In a machine, for uniting it fabrics, a looper hook provided with an axle shaft, a reciprocatory thread needle, and means for mounting and actuating said axle shaft whereby said looper hook is moved diagonally over and stopped to dwell in reversed vertical positions at opposite sides of the thread needle and is adapted in one position to take up the thread from the thread needle and in the other to have the latter take up a loop from the looperhooku 6. In -a machine for uniting knit fabrics, a ring of impaling pins, a reciprocatory needle arm provided with a curved thread needle, means for actuating said ring of impaling pins and reciprocatory needle arm, a stitch finger mounted above the path of travel of said ring of impaling pins and said thread needle, :a rotary looper carrying shaft, a looper mounted in cooperative relationto said stitch finger and thread needle,

means for supporting said looper carrying shaft, and means for actuating the latter, whereby said looper is caused to assume and dwell in substantially vertical but reversed positions on opposite sides of the path of travel of-said curved thread needle.

7. In a machine for uniting knit fabrics, a ring of impaling pins, a driving shaft,

means for actuating said ring of impaling pins from said driving shaft, a reciprocatory needle arm operatively connected to said driving shaft, a stitch finger extend ng above the path of travel of said ring of mpaling pins, a curved thread needle carried by said needle arm and adapted to pass above each of said impaling pins and below said stitch finger, a rotatably mounted looper hook, means for supporting said looper hook, and means for actuating said looper hook in cooperative relation to said curved thread needle and stitch finger, whereby said looper is caused to assume and dwell in substantially vertical but reversed positions on opposite sides of the path of travel of-said curved thread needle.

8. In a machine for uniting knit fabrics, a thread carrying looper provided at one end with an axle stem and at the other with a looper hook, a reciprocatory thread needle, and means for actuating said thread needle and axle stem whereby said looper hook will be moved in a circular path above said thread needle and will be stopped and caused to dwell in reversed up and down vertical,

positions on opposite sides'of the latter, said looper hook advancing and taking up the thread from the thread needle when the latter latter is in its advanced position and when said thread needle is in its rearward position said looper-hookbeing stopped on the side of the path of the thread needle whereby the latter as advanced will enter and take up the loop from the looper hook.

In testimony whereof I have atfixedmy signature in presence of two witnesses.

WILLIAM CARPENTER WRIGHT. Witnesses: V

L. M. HEL'WIG, M. D. LEE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. (2. 

